CECO vs. ATMU

Last updated Jun 24, 2026

CECO (CECO Environmental Corp.) and ATMU (Atmus Filtration Technologies Inc.) are both stocks. Both operate in the Pollution & Treatment Controls industry within the Industrials sector. Over the past 3 years, CECO returned 96.30%/yr vs 32.01%/yr for ATMU. At a 0.32 correlation, their price movements are largely independent.

Performance

CECO vs. ATMU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in CECO Environmental Corp. (CECO) and Atmus Filtration Technologies Inc. (ATMU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CECO achieves a 61.52% return, which is significantly higher than ATMU's -3.20% return.

CECO

• 1D: -3.01%
• 1M: 18.31%
• YTD: 61.52%
• 6M: 59.36%
• 1Y: 234.38%
• 3Y*: 96.30%
• 5Y*: 66.08%
• 10Y*: 28.05%

ATMU

• 1D: -3.78%
• 1M: 2.82%
• YTD: -3.20%
• 6M: -6.44%
• 1Y: 42.20%
• 3Y*: 32.01%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

CECO vs. ATMU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
CECO CECO Environmental Corp.	61.52%	97.98%	49.06%	78.68%
ATMU Atmus Filtration Technologies Inc.	-3.20%	33.16%	67.28%	8.40%

Correlation

The correlation between CECO and ATMU is 0.33, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.33
Correlation (3Y) Calculated over the trailing 3-year period	0.33
Correlation (All Time) Calculated using the full available price history since May 26, 2023	0.32

Fundamentals

Market Cap CECO : $3.55B ATMU : $4.11B
EPS CECO : $0.47 ATMU : $2.56
PE Ratio CECO : 206.75 ATMU : 19.61
PEG Ratio CECO : 0.59 ATMU : 3.53
PS Ratio CECO : 4.36 ATMU : 3.07
PB Ratio CECO : 11.38 ATMU : 10.19
Total Revenue (TTM) CECO : $812.38M ATMU : $1.35B
Gross Profit (TTM) CECO : $278.45M ATMU : $529.00M
EBITDA (TTM) CECO : $77.75M ATMU : $334.60M

Return for Risk

CECO vs. ATMU — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

CECO

CECO Risk / Return Rank: 95
CECO Sharpe Ratio Rank: 97
CECO Sortino Ratio Rank: 93
CECO Omega Ratio Rank: 94
CECO Calmar Ratio Rank: 95
CECO Martin Ratio Rank: 96

ATMU

ATMU Risk / Return Rank: 72
ATMU Sharpe Ratio Rank: 76
ATMU Sortino Ratio Rank: 69
ATMU Omega Ratio Rank: 72
ATMU Calmar Ratio Rank: 69
ATMU Martin Ratio Rank: 74

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

CECO vs. ATMU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for CECO Environmental Corp. (CECO) and Atmus Filtration Technologies Inc. (ATMU). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	CECO	ATMU	Difference
Sharpe ratio: Return per unit of total volatility	3.77	1.16	+2.61
Sortino ratio: Return per unit of downside risk	3.61	1.59	+2.02
Omega ratio: Gain probability vs. loss probability	1.51	1.23	+0.28
Calmar ratio: Return relative to maximum drawdown	6.73	1.40	+5.33
Martin ratio: Return relative to average drawdown	21.03	4.24	+16.80

CECO vs. ATMU - Sharpe Ratio Comparison

The current CECO Sharpe Ratio is 3.77, which is higher than the ATMU Sharpe Ratio of 1.16. The chart below compares the historical Sharpe Ratios of CECO and ATMU, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

CECO vs. ATMU - Drawdown Comparison

The maximum CECO drawdown since its inception was -90.64%, which is greater than ATMU's maximum drawdown of -30.22%. Use the drawdown chart below to compare losses from any high point for CECO and ATMU.

Drawdown Indicators

	CECO	ATMU	Difference
Max Drawdown Largest peak-to-trough decline	-90.64%	-30.22%	-60.42%
Max Drawdown (1Y) Largest decline over 1 year	-35.08%	-30.22%	-4.86%
Max Drawdown (3Y) Largest decline over 3 years	-47.93%	-30.22%	-17.71%
Max Drawdown (5Y) Largest decline over 5 years	-47.93%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-74.13%	—	—
Current Drawdown Current decline from peak	-3.01%	-23.43%	+20.42%
Average Drawdown Average peak-to-trough decline	-46.21%	-8.77%	-37.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.20%	9.99%	+1.21%

Volatility

CECO vs. ATMU - Volatility Comparison

CECO Environmental Corp. (CECO) has a higher volatility of 26.06% compared to Atmus Filtration Technologies Inc. (ATMU) at 11.26%. This indicates that CECO's price experiences larger fluctuations and is considered to be riskier than ATMU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CECO	ATMU	Difference
Volatility (1M) Calculated over the trailing 1-month period	26.06%	11.26%	+14.80%
Volatility (6M) Calculated over the trailing 6-month period	51.17%	31.16%	+20.01%
Volatility (1Y) Calculated over the trailing 1-year period	62.55%	36.49%	+26.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	52.23%	34.48%	+17.75%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	52.03%	34.48%	+17.55%

Dividends

CECO vs. ATMU - Dividend Comparison

CECO has not paid dividends to shareholders, while ATMU's dividend yield for the trailing twelve months is around 0.44%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ATMU Atmus Filtration Technologies Inc.	0.44%	0.40%	0.26%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
CECO CECO Environmental Corp.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	4.39%	1.89%	3.44%

Financials

Frequently Asked Questions

Can I hold both CECO and ATMU in my portfolio?

CECO and ATMU have a correlation of 0.33, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CECO or ATMU?

CECO has higher volatility (26.06%) compared to ATMU (11.26%). In terms of maximum drawdown, CECO dropped -90.64% vs ATMU's -30.22%.

Which has better risk-adjusted returns?

CECO currently has the higher Sharpe Ratio (3.77 vs 1.16), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.